Ruby: GameStats needs to be a class
Ruby: GameStats needs to be a class

This fixes GameStats#create_game_stats for games without a specialized stats class

kickback/steam-condenser-ruby,Arie/steam-condenser-ruby,jpalumickas/steam-condenser-ruby,bfosberry/steam-condenser-ruby,hcool/steam-condenser-ruby,koraktor/steam-condenser-ruby